package com.ruoyi.coal.common.utils;


import javax.servlet.http.HttpServletRequest;

import com.ruoyi.common.utils.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class IPUtils {
    private static Logger logger = LoggerFactory.getLogger(com.ruoyi.coal.common.utils.IPUtils.class);

    public static String getIpAddr(HttpServletRequest request) {
        String ip = null;
        try {
            ip = request.getHeader("x-forwarded-for");
            if (StringUtils.isEmpty(ip) || "unknown".equalsIgnoreCase(ip))
                ip = request.getHeader("Proxy-Client-IP");
            if (StringUtils.isEmpty(ip) || ip.length() == 0 || "unknown".equalsIgnoreCase(ip))
                ip = request.getHeader("WL-Proxy-Client-IP");
            if (StringUtils.isEmpty(ip) || "unknown".equalsIgnoreCase(ip))
                ip = request.getHeader("HTTP_CLIENT_IP");
            if (StringUtils.isEmpty(ip) || "unknown".equalsIgnoreCase(ip))
                ip = request.getHeader("HTTP_X_FORWARDED_FOR");
            if (StringUtils.isEmpty(ip) || "unknown".equalsIgnoreCase(ip))
                ip = request.getRemoteAddr();
        } catch (Exception e) {
            logger.error("IPUtils ERROR ", e);
        }
        return ip;
    }
}
